Abstract

目的 探讨尿NT-proBNP在慢性心力衰竭(chroniC heart failare,CHF)中的变化规律,与心功能分级的相关性,进一步探讨尿NT-proBNP对慢性心力衰竭的诊断价值.方法 49例入院治疗的CHF患者(NYHA Ⅱ-Ⅳ级)和24例健康体检者,测定血NT-proBNP、尿NT-proBNP,超声心动图检测左室舒张末室间隔厚度、左室舒张末期内径、左室收缩末期内径、左室射血分数.结果 ①CHF组尿NT-proBNP水平和血NT-proBNP水平明显高于正常对照组,分别为(65.47±41.34)pg/ml vs(17.95±7.22)pg/ml,(3204.47±2067.34)pg/ml vs(40.60±1 5.38)pg/ml,P均<0.01.尿NT-proBNP水平与血NT-proBNP水平呈正相关(r=0.639,P<0.001).②随心功能的恶化,尿NT-proBNP水平逐渐升高.尿NT-proBNP与NYHA分级、左室舒张末期内径呈正相关(P均<0.001),与左室射血分数呈负相关(P<0.001).多元逐步回归分析显示与logNT-proBNP独立相关的变量是血NT-proBNP、左室射血分数及NYHA分级.③尿NT-proBNP、血NT-proBNP对CHF诊断价值以ROC曲线下面积表示,分别为0.837(95%可信限:0.758~0.952),0.883(95%可信限:0.809~0.963).④根据ROC曲线,以诊断CHF的敏感度与特异度之和的最高值作为截断值,尿NT-proBNP的截断值为19.01pg/ml.结论 ①在正常人和CHF患者尿中可检测到NT-proBNP.②CHF患者尿NT-proBNP水平明显高于对照组,而且尿NT-proBNP水平与血NT-proBNP水平呈正相关.③CHF患者随心功能的恶化(NYHA Ⅱ-Ⅳ级),尿NT-proBNP水平逐渐升高.尿NT-proBNP水平与LAD无相关性,与LVEDD、NYHA分级呈正相关,与LVEF呈负相关.④尿NT-proBNP在检测CHF中与血NT-proBNP具有相似的诊断价值。

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.